Hi
I have an registrar / isp which when using TLS, requires version 1.3 - DNS NAPTR is used for service discovery.
I have some older sip devices, which most probably only support TLS 1.0
In [transport-tls] which I set method=tlsv1_3 the trunk registers and talls to from the isp work, but some older clients can not register anymore.
I would rather not link the transport to a clients to allow it to choose which transport to use and also be able to use IPv6
I have been trying to tune /etc/ssl/openssl.conf but I have not found a variant which allows asterisk to autonegotiate the tls protocol version per peer.
Is this possible?